Class MGF1ParameterSpec
java.lang.Object
java.security.spec.MGF1ParameterSpec
- All Implemented Interfaces:
AlgorithmParameterSpec
This class specifies the set of parameters used with mask generation
function MGF1 in OAEP Padding and RSASSA-PSS signature scheme, as
defined in the
PKCS#1 v2.2 standard.
Its ASN.1 definition in PKCS#1 standard is described below:
PKCS1MGFAlgorithms ALGORITHM-IDENTIFIER ::= {
{ OID id-mgf1 PARAMETERS HashAlgorithm },
... -- Allows for future expansion --
}
where
HashAlgorithm ::= AlgorithmIdentifier {
{OAEP-PSSDigestAlgorithms}
}
OAEP-PSSDigestAlgorithms ALGORITHM-IDENTIFIER ::= {
{ OID id-sha1 PARAMETERS NULL }|
{ OID id-sha224 PARAMETERS NULL }|
{ OID id-sha256 PARAMETERS NULL }|
{ OID id-sha384 PARAMETERS NULL }|
{ OID id-sha512 PARAMETERS NULL }|
{ OID id-sha512-224 PARAMETERS NULL }|
{ OID id-sha512-256 PARAMETERS NULL },
... -- Allows for future expansion --
}
- Since:
- 1.5
- External Specifications
- See Also:
-
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-1" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-224" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-256" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-224" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-256" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-384" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-512" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-384" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-512" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-512/224" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-512/256" message digest. -
Constructor Summary
ConstructorsConstructorDescriptionMGF1ParameterSpec(String mdName) Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard. -
Method Summary
Modifier and TypeMethodDescriptionReturns the algorithm name of the message digest used by the mask generation function.
-
Field Details
-
SHA1
TheMGF1ParameterSpecuses a "SHA-1" message digest. -
SHA224
TheMGF1ParameterSpecuses a "SHA-224" message digest. -
SHA256
TheMGF1ParameterSpecuses a "SHA-256" message digest. -
SHA384
TheMGF1ParameterSpecuses a "SHA-384" message digest. -
SHA512
TheMGF1ParameterSpecuses a "SHA-512" message digest. -
SHA512_224
TheMGF1ParameterSpecuses a "SHA-512/224" message digest.- Since:
- 11
-
SHA512_256
TheMGF1ParameterSpecuses a "SHA-512/256" message digest.- Since:
- 11
-
SHA3_224
TheMGF1ParameterSpecuses a "SHA3-224" message digest.- Since:
- 16
-
SHA3_256
TheMGF1ParameterSpecuses a "SHA3-256" message digest.- Since:
- 16
-
SHA3_384
TheMGF1ParameterSpecuses a "SHA3-384" message digest.- Since:
- 16
-
SHA3_512
TheMGF1ParameterSpecuses a "SHA3-512" message digest.- Since:
- 16
-
-
Constructor Details
-
MGF1ParameterSpec
Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard.- Parameters:
mdName- the algorithm name for the message digest used in this mask generation function MGF1.- Throws:
NullPointerException- ifmdNameis null.
-
-
Method Details
-
getDigestAlgorithm
Returns the algorithm name of the message digest used by the mask generation function.- Returns:
- the algorithm name of the message digest.
-